Cloned VM issues

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Elias137

Member
Jan 19, 2022
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Hi!

I've got 2 VMs running on Proxmox 8.0.3, VM 100 and 101. 101 has been cloned from VM 100. The problem is in that I can't power on both VMs at a time. Once I power on any of my VMs, the other is shutting down immediately. Both VMs are Windows Server 2019 Standard
 
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bbgeek17 said:
sounds like you have a pass-through device, which can only be used by one VM at a time, or the VMs are heavily over-provisioned, ie more memory combined than host can handle.
Is there anything interesting in "qm config 100" and "qm config 101" outputs?

Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox
Click to expand...
here it is

100.conf

agent: 1
boot: order=scsi0
cores: 4
ide1: local:iso/virtio-win-0.1.229.iso,media=cdrom,size=522284K
machine: pc-i440fx-8.0
memory: 8092
meta: creation-qemu=8.0.2,ctime=1691682920
name: 100
net0: e1000=C6:BB:7A:33:24:24,bridge=vmbr0,firewall=1
ostype: win10
scsi0: local-lvm:vm-100-disk-0,size=64G
scsihw: virtio-scsi-pci
smbios1: uuid=eab3248c-d935-4044-8d55-9c0528bb7df8
sockets: 1
vmgenid: 6e6cf5b9-16cf-499f-b50b-e1bb26f5acd1

101.conf

agent: 1
boot: order=scsi0
cores: 4
ide1: local:iso/virtio-win-0.1.229.iso,media=cdrom,size=522284K
machine: pc-i440fx-8.0
memory: 8092
meta: creation-qemu=8.0.2,ctime=1691682920
net0: e1000=E6:32:78:FD:30:CE,bridge=vmbr0,firewall=1
ostype: win10
scsi0: local-lvm:vm-101-disk-0,size=64G
scsihw: virtio-scsi-pci
smbios1: uuid=65501cd7-a2ef-460d-bd6d-4f2fe78f8bb4
sockets: 1
vmgenid: 66ec19b5-d03c-4977-93b6-40b408647417
 
bbgeek17 said:
sounds like you have a pass-through device, which can only be used by one VM at a time, or the VMs are heavily over-provisioned, ie more memory combined than host can handle.
Is there anything interesting in "qm config 100" and "qm config 101" outputs?

Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox
Click to expand...
I think I got my issue solved! My host has 8 GiG memory in total, and both VMs was set to use 8 GiG. I set each VM to use 4 GiG and now everything's fine, both VMs are running at the same time. Thanks for the hint!
 
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Elias137 said:
I think I got my issue solved! My host has 8 GiG memory in total, and both VMs was set to use 8 GiG. I set each VM to use 4 GiG and now everything's fine, both VMs are running at the same time. Thanks for the hint!
Click to expand...
Then you are still overprovisioning RAM. PVE itself wants 2GB and each VM still might consume more than 4GB because there is virtualization overhead. I really would upgrade the RAM if you don't want OOM killing one of them under pressure.
 
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